Hurricane Irah
● Data reliability: Generally reliable——Aircraft entered typhoons for in situ measurements, but satellites were not yet widespread: tracks are generally accurate, while intensities may be biased, with weaker cyclones potentially going unrecorded from 1950 until the advent of satellite coverage.
Irah at 1963-09-12 08:00:00 (BeijingTime) 在Central Pacific首次被记录, peak intensity 为Tropical Storm, max wind 约 23.1 m/s (1 分钟平均) , at 1963-09-21 08:00:00前后结束, total 记录 37 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1963-09-12 08:00 | 18.6°N, 124.8°W | Tropical Storm | 23.1 | - |
| 1963-09-12 20:00 | 19.5°N, 127.8°W | Tropical Storm | 23.1 | - |
| 1963-09-13 08:00 | 22.0°N, 128.0°W | Tropical Storm | 23.1 | - |
| 1963-09-13 20:00 | 21.8°N, 131.3°W | Tropical Storm | 23.1 | - |
| 1963-09-14 08:00 | 21.3°N, 133.6°W | Tropical Storm | 23.1 | - |
| 1963-09-14 20:00 | 21.1°N, 136.9°W | Tropical Storm | 23.1 | - |
| 1963-09-15 08:00 | 21.1°N, 139.0°W | Tropical Storm | 23.1 | - |
| 1963-09-15 20:00 | 21.5°N, 141.0°W | Tropical Depression | 12.9 | - |
| 1963-09-16 08:00 | 22.2°N, 143.6°W | Tropical Depression | 12.9 | - |
| 1963-09-16 20:00 | 23.0°N, 146.4°W | Tropical Depression | 12.9 | - |
| 1963-09-17 08:00 | 23.6°N, 149.0°W | Tropical Depression | 12.9 | - |
| 1963-09-17 20:00 | 23.3°N, 152.1°W | Tropical Depression | 12.9 | - |
| 1963-09-18 08:00 | 23.3°N, 155.4°W | Tropical Depression | 12.9 | - |
| 1963-09-18 20:00 | 21.3°N, 157.6°W | Tropical Depression | 12.9 | - |
| 1963-09-19 08:00 | 20.2°N, 160.5°W | Tropical Depression | 12.9 | - |
| 1963-09-19 20:00 | 19.5°N, 163.4°W | Tropical Depression | 12.9 | - |
| 1963-09-20 08:00 | 19.1°N, 166.4°W | Tropical Depression | 12.9 | - |
| 1963-09-20 20:00 | 20.0°N, 172.6°W | Tropical Depression | 12.9 | - |
| 1963-09-21 08:00 | 19.0°N, 178.4°W | Tropical Depression | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1963255N19235 / EP051963. The basin has no official Chinese name, so the original English name is used. Intensity is classified by the local agency in each basin, based on 1-minute sustained winds converted using the WMO factor, for reference only. Data notes · Incorrect translation?
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